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INDONESIA
Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan
Published by Universitas Lampung
ISSN : 2301816X     EISSN : 25797638     DOI : -
Core Subject : Education,
Other
Arjuna Subject : -
Articles 207 Documents
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Pola Pertumbuhan Dan Reproduksi Ikan Lumo (Labiobarbus ocellatus) di Sungai Tulang Bawang Provinsi Lampung Alwan Tholifin; Berta Putri; Rara Diantari; Indra Gumay Yudha
AQUASAINS Vol 3, No 1 (2014)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Lumo (Labiobarbus ocellatus) is one of consumption fish that available throughout the year at Tulang Bawang river.The constrains to local fish populations is reducing fish stocks by fisherman. Information about growth and reproduction of lumo is necessary to support the management of fish resources. The research was conducted on April until December 2013. The samples were collected from 4 stations and from the fisherman who landed at fish market The parameters that were measured included of the length and weight, the gonade somatic level, the gonade somatic index and fecundity. Fish samples were used for this study is 893 fish. The result showed that lumo spawned from November to Desember and categorized as total spawner. The gonade maturity index varied from 2.22 to 7.27%, fecundity ranged from 424 to 24.491 eggs, the sex ratio of lumo is unbalanced.The growth pattern were positive allomatric and condition factor is <1 in which showed lumo in Tulang Bawang river is flat
REDUCTION OF TOTAL ORGANIC CARBON AND CORRELATION WITHIN ABUNDANCE AND DIVERSITY OF PHYTOPLANKTON IN AQUAPONICS SYSTEM Indah Pratiwi Juliana SY; Rara Diantari; Eko Efendi
AQUASAINS Vol 4, No 1 (2015)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Water quality plays an important role in aquaponics system. Water chemistry parameter that may affect water quality is total organic carbon. Sources of carbon in the aquaponics system mainly derived from the decomposition of organic matter which derived from artificial feed and plant respiration. The research was conducted to study the reduction of total organic carbon concentration in the aquaponic system and the relation of abundance and diversity of phytoplankton. This research using different amount of ipomoea (Ipomoea aquatica) consist of 10, 20, and 30 rods and control treatments which use without ipomoea. The results showed that all of ipomoea treatments can reduce the amount of total organic carbon concentration in the aquaponics system. This research showed that nutrients cycle in the aquaponics system, especially total organic carbon dissolved in water is influenced by many factors such as plants, fish and primary productivity which determined by the plankton. Furthermore, a positive correlation occurred between total organic carbon concentration of the abundance and diversity of phytoplanktons (r = 0.5925; r = 0.6364). These results can be used for preliminary study of nutrient cycle model in aquaponic system.
EFFECT OF LIGHT INTENSITY ON THE CELL DENSITY, DIAMETER AND CELL VOLUME ZOOXANTHELLAE FROM ISOLATE SOFTCORAL Zoanthus sp Suliswati Suliswati; Esti Harpeni; Moh. Muhaemin
AQUASAINS Vol 5, No 1 (2016)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Coral reefs are one of the aquatic ecosystem trophic productive for aquatic organisms. Coral reefs can not be separated from the various threat of causing damage. Physiological damage that is visible coral bleaching. Bleaching of coral reefs due to causes it may be the biggest threat to coral ecosystems due to widespread in various regions. Coral bleaching causing the loss of endosymbiont coral or reduction of photosynthetic pigments zooxanthellae of corals. Zooxanthellae need light for photosynthesis. The process will produce energy which serves for the biosynthesis cell, growth and cell division. Therefore light plays an important role in the process of photosynthesis. This research aims were to know the cell density, diameter and volume zooxanthellae cells on different light intensity. The research was conducted on July-August 2016, in the Aquaculture Laboratory, Program Study of Aquaculture Faculty of Agriculture University of Lampung. Observed parameters were the density, diameter and volume zooxanthellae cells. Research used the 4 treatments and 5 replications namely 3800 lux (IC1), 6250 lux (IC2), 7980 lux (IC3), and 11800 lux (IC4). Measurement of the density and diameter of zooxanthellae cells used a hemocytometer neubauer improved and objective micrometer (0.01 mm). Data were analyzed by analysis of variance (ANOVA) and followed by LSD test. The results showed that the intensity of light significantly affected the density, diameter and volume zooxanthellae cells. Intensity light given by zooxanthellae responded with increased density and a decrease the diameter and volume zooxanthellae cells in the early stages of culture (0-18 hours).
EFFECT OF DIFFERENT STOCKING DENSITY TO GROWTH RATE OF CATFISH (Clarias gariepinus, Burch) CULTURED IN BIOFLOC AND NITROBACTER MEDIA Puspita, Elfa Verda; Sari, Ratih Purnama
AQUASAINS Vol 6, No 2 (2018)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.507 KB) | DOI: 10.23960/aqs.v6i2.p583-588

Abstract

Catfish is one of the freshwater commodities whose demand continues to increase in Indonesia. Intensive cultivation is done to meet market demand. Intensive cultivation is done by optimizing stocking density. The aim of this research was to know the effect of different density on feed productivity, growth, feed conversion ratio (FCR) and survival of catfish dumbo fry (Clarias gariepinus, Burch) in biofloc and nitrobacter media. This study used a completely randomized design (RAL) with 6 treatments and 3 replications. The test animalsused catfish dumbo (Clarias gariepinus, Burch) with an average weight of 0,6 ± 0,1g and an average length of 4 cm. Catfish dombo seeds are kept in tarpaulin ponds 2 m in diameter with water volume ± 1 m3 for 45 days and feeding 3% of biomass weight. The results showed that the different density of stockingin biofloc and nitrobacter media had increase on productivity, specific growth rate, feed efficiency and no significant effect on the survival of catfish dumbo fry.
KARAKTERISTIK HABITAT DAN POTENSI KEPITING BAKAU (Scylla serrata, S.transquaberica, and S.olivacea) DI HUTAN MANGROVE CIBAKO, SANCANG, KABUPATEN GARUT JAWA BARAT Irvan Avianto; Sulistiono Sulistiono; Isdrajad Setyobudiandi
AQUASAINS Vol 2, No 1 (2013)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

The research aimed to collectdata and information about the habitatcaracteristics and mud crabs potency in Cibakomangrove forest. Sampling was conductedthrough line plot transect survey.Parameters examined physical-chemical characteristic,mangrove vegetation, mud crabspopulation and size distribution. Habitatcharacteristics were collected cluster analisys.The result showed that some parametersof habitat were resemblance wherestations 1 and 2 were Groups A, stations3 and 4 were groups B , and station 5 and6 were groups C. The mud crabs populations,size distribution, and habitat groupswere analyzed correspondence analysis.S.serrata dominate in zone A in dark totaled67 ind. individual existence S.serrataallegedly tolerant of high salinity > 28 0/00and macrozoobenthos abundance of mangrovecrabs as a food source. S.tanquabericadominate in zone B in the dark was 70 ind.The presence of individual species in zoneB allegedly tolerant of salinity 24 -> 280/00, natural food abundance and habitatsuitability as a mud substrate. S.olivaceadominate in the zone C in the dark totaled38. The presence of individual speciesin zone C allegedly due to low salinity tolerant in the range of 21-22 0/00 and canlive on clay substrate.
Hubungan Perubahan Kualitas Air Dan Pertumbuhan Fitoplankton Berbahaya Pada Lingkungan Budidaya Ikan Di Perairan Ringgung Teluk Lampung Agus Solihin; Qadar Hasani; Herman Yulianto
AQUASAINS Vol 3, No 2 (2015)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Water quality becomes the critical factor of successfully aqua culture process; especially this is in aquaculture of floating cages. Otherwise, unstable water quality could impact the negative effect toward aquatic ecosystem such as the large explosion of harmful phytoplankton population (HABs). The objective of this research is to analyze a relation between the water quality of floating cages and the growth of harmful phytoplankton population by using canocial corelation analysis. Water quality research includes its brightness, the deepness, disolved oxygen, salinity, pH, value of NO2, NO3, NH3, and PO4 and toxic phytoplankton obtained during the study also indicate the amount of phytoplankton growth The results were obtained 14 species of toxic phytoplankton in the study sites. Overall abundance of phytoplankton dominated by Choclodinium, Trichodesmium Erythraeum, Nitzschia Lanceolata dan Pseudo Nitzschia, where Choclodinium an abundance of phytoplankton with the highest density of 63 739 cells/l. Canonical correlation analysis on triplot diagram showed water quality includes : brightness, disolved oxygen, pH, NO2, NO3 and PO4 together to give effect to toxic phytoplankton abundance. Canonical correlation analysis also specifically indicate the abundance Choclodinium and Trichodesmium Erythraeum in floating nets of Ringgung Marines predominantly influenced by brightness, pH, value of NO3, and PO4.
PATHOGENICITY AND IN VIVO STUDY OF LOCAL ISOLATE Bacillus sp. D2.2 AT THE VANNAMEI CULTURE (Litopenaeus vannamei) Sera Hardiyani; Esti Harpeni; Agus Setyawan; Supono Supono
AQUASAINS Vol 5, No 1 (2016)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Penggunaan bakteri biokontrol dapat dijadikan solusi bagi permasalahan pemberantasan penyakit untuk menekan pertumbuhan bakteri pathogen pada budidaya udang vaname (Litopenaeus vannamei). Bacillus sp. D2.2 merupakan isolat bakteri lokal yang terbukti mampu menghambat pertumbuhan Vibrio harveyi secara in vitro. Potensi lain isolat bakteri ini perlu diketahui lebih lanjut melalui penelitian ini. Tujuan penelitian ini adalah untuk mengetahui tingkat patogenisitas bakteri biokontrol Bacillus sp. D2.2 terhadap udang vaname dan kemampuannya dalam menghambat pertumbuhan bakteri patogen Vibrio alginolyticus secara in vivo. Uji patogenisitas Bacillus sp. D2.2 dilakukan dengan metode LD50 pada tingkat kepadatan 103, 104, 105 dan 106 CFU/ml.Hasil LD50 menunjukkan Bacillus sp. D2.2 tidak bersifat patogen karena tidak ada konsentrasi bakteri yang mematikan hingga 50% larva udang vaname. Uji antagonisme Bacillus sp. D2.2 terhadap V.alginolyticus secara in vivo dilakukan pada 2 perlakuan, yaitu pemeliharaan udang vaname tanpa penambahan Bacillus sp. D2.2 dan pemeliharaan udang vaname dengan penambahan Bacillus sp. D2.2. Kedua perlakuan diuji tantang dengan V.alginolyticus 105 cfu/ml dan diulang 3 kali. Hasil penelitian menunjukkan Bacillus sp. D2.2 mampu menurunkan pertumbuhan V.alginolyticus dari 105 CFU/ml sampai 103 CFU/ml. Hal tersebut menjelaskan bahwa Bacillus sp. D2.2 berpotensi sebagai bakteri biokontrol.
PROTECTED, PROHIBITED, AND INVASIVE FISH DIVERSITY AND DISTRIBUTION IN RANAU LAKE OF WEST LAMPUNG DISTRICT Sumino Sumino; Herman Mude; Santi Saluri Alam; Dini Dini
AQUASAINS Vol 6, No 1 (2017)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

The objectives of this research were to collect fish species in Ranau Lake of West Lampung District, analyze the fish community structure, determine the types of fish that are protected, prohibited, or invasive and mapping its distribution. Sampling was done on three locations: Station 1 (Suka Banjar), Station 2 (Kagungan), and Station 3 (Lombok). The data were analyzed by the structure of the community: diversity (H'), uniformity (E) and dominance index (C). The result of the identification indicate that there are 26 species of fish and total number of fish is 184. The results of the analysis of fish community structure in Ranau Lake have medium diversity, medium distribution and moderate community stability (H’=1.43), medium uniformity and volatile communities (E = 0.41),  low dominance and no dominant fish species (C = 0.32). From the 26 fish species in Ranau Lake, there are no protected and prohibited fish species, there are two types of fish categories as invasive alien species: nile tilapia (Oreochromis niloticus) and suckermouth catfish (Hypostomus plecostomus).
PENGARUH LAMA WAKTU PEMBERIAN KEJUTAN DINGIN PADA PEMBENTUKAN INDIVIDU TRIPLOID IKAN PATIN (Pangasius sp) Dwi Puji Hartono; Dian Febriani
AQUASAINS Vol 2, No 1 (2013)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Tujuan kegiatan penelitian adalahmengetahui pengaruh lama waktu kejutansuhu terhadap pembentukan individutriploid pada ikan patin, tingkat derajatpenetasan dan kelangsungan hidup larvaikan patin Perlakuan lama waktu kejutansuhu dingin yang diberikan masing-masing120 detik, 180 detik dan 240 detik pada suhu4oC pada fase meiosis 1. Masing-masingperlakuan dilakukan sebanyak 3 kali. Penetasandan pemeliharaan larva dilakukanpada akuarium serta hapa untuk kegiatanpendederan. Hasil penelitian menunjukkanbahwa perlakuan lama waktu kejutan suhudingin memberikan hasil yang nyata terhadappembentukan individu triploid padaikan patin (P<0,05). Persentase individutriploid tertinggi diperoleh pada lamawaktu kejutan 78,33%. Selain itu tingkatpertumbuhan benih ikan patin hinggahari ke-28 menunjukkan peningkatan sejalandengan peningkatan persentase individutriploid dari masing-masing perlakuan.Laju pertumbuhan tertinggi diperoleh dariperlakuan lama waktu kejutan suhu 4oCsebesar 10,40 %.
Transfer Nutrisi Dan Energi Larva Udang Vanname (Litopennaeus vannamei) dengan Pemberian Pakan Artemia sp. Produk Lokal dan Impor Vivi Endar Herawati
AQUASAINS Vol 2, No 2 (2014)
Publisher : Jurusan Perikanan dan Kelautan

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Abstract

Nutrisi dalam pakan merupakan faktor utama yang diperlukan dalam pertumbuhan dan meningkatkan tingkat kelulushidupan. Transfer nutrisi diperlukan untuk menemukan kandungan nutrisi yang paling banyak diserap dan dimanfaatkan untuk pertumbuhan larva udang, kemudian kebutuhan energy ditemukan melalui proses penyerapan nutrisi dalam Artemia sp. pada larva udang. Tujuan dari penelitian ini, yaitu menemukatan transfer nutrisi melalui profil asam lemak serta profil asam amino essensial dan menemukan kebutuhan energy total dalam penyerapan pakan Artemia sp. pada larva udang vanname stadia PL1-PL10. Metode yang digunakan adalah eksperimental dengan 3 perlakuan dan analisa data yang dilakukan secara deskriptif berdasarkan hasil analisis profil asam lemak dan profil asam amino essensial. Hasil yang didapatkan  transfer asam lemak lemak jenuh tertinggi pada larva udang dengan pemberian pakan Artemia sp. produk lokal, yaitu asam lemak palmitat dan transfer asam lemak tak jenuh tertinggi pada larva udang dengan pemberian pakan Artemia sp. produk impor, yaitu 6,44%. Transfer asam amino essensial total tertinggi pada larva udang dengan pemberian pakan Artemia sp. produk lokal dengan nilai transfer 0,61 ppm. Hasil perhitungan energi total pada larva udang vanname stadia PL 5 dan PL 10 dengan pemberian pakan Artemia sp. produk lokal adalah 2,95 kkal/g dan 3,35 kkal/g; kemudian untuk energi total pada larva udang stadia PL 5 dan PL 10 dengan pemberian pakan Artemia sp. impor adalah 2,76 kkal/gr dan 3,20 kkal/gr.

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